Check the newsgroups and try to determine some frequent
problems and cover them here. Again an example from the Multi Disk
HOWTO.

This is just a collection of what I believe are the most common
questions people might have. Give me more feedback and I will turn
this section into a proper FAQ.

Q:How many physical disk drives (spindles) does a Linux system need?

A: Linux can run just fine on one drive (spindle). Having
enough RAM (around 32 MB, and up to 64 MB) to support swapping
is a better price/performance choice than getting a second
disk. (E)IDE disk is usually cheaper (but a little slower) than
SCSI.

Q: Are there any disadvantages in this scheme?

A: There is only a minor snag: if even a single partition
overflows the system might stop working properly. The severity
depends of course on what partition is affected. Still this is
not hard to monitor, the command df gives
you a good overview of the situation. Also check the swap
partition(s) using free to make sure you are
not about to run out of virtual memory.

Q: OK, so should I split the system into as many partitions as
possible for a single drive?

A: No, there are several disadvantages to that. First of all
maintenance becomes needlessly complex and you gain very little
in this. In fact if your partitions are too big you will seek
across larger areas than needed. This is a balance and
dependent on the number of physical drives you have.